My question is related with the original question. I made a copy of your
"notifyCB" procedure in my 8.17 environment but when I compiled the procedure ,
it gave me "PLS-00201: identifier 'SYS.AQ$_REG_INFO' must be declared" error.
When I asked my DBA to look into, he replied me back that this object does not
exist in 8i but it exist in 10G.

I neeed to call a pl/sql procedure after a message is enqueued in a queue, how
would I do it in 8.1.7 environment?